著者名,タイトル,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Yoshinaga,Origin of parent material of volcanic ash soils in Japan (In Japanese.),Bull. Volcanol. Soc. Jpn.,,,1995,40,,153,https://cir.nii.ac.jp/crid/1370848663334200453,